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. 2019 Dec 11;9:18870. doi: 10.1038/s41598-019-54716-8

Figure 6.

Figure 6

Effect of tridecaptin M on the outer and cytoplasmic membranes of various pathogens. (a) NPN assay to determine the disruption of outer membrane. M1 showed positive results in all the strains, despite of its high MIC in P3R strain, A. baumannii and P. aeruginosa. M11 demonstrated greater uptake of NPN, compared to M1, even a lower concentration. (b) Membrane depolarization assay with DiSC3(5). Similar results were obtained for M1, as observed in the NPN assay. This data suggests that the resistance to tridecaptin M in these strains (excluding ATCC 700603) may be due to efflux pumps or some other mechanisms. Both the experiments were conducted in triplicate, with three biological repeats.